It's an example of the basis of all Hack and Slash games. It makes sense since Gauntlet itself was one of the main origins of the entire genre.
This one has been updated and modernized a bit, but it's a hack and slash game at it's core.
I played a few levels of single player to see what it has to offer and quickly realized that this game is truly made to be played with friends in local co-op. I'm going to keep it installed for the next time I have some people over who would be interested in local co-op. It's not that great single player but with friends it could be so much fun.